Silt trap



- sept'. 4, 1922.-` www@ G, B. TREW SILT TRAP Filed July 13 1921 2 Sheets-Sheet 2 Patented Sept. 4,1923.

Ufiajirlin STAT-Es 1,466,773 PATENT OFFICE..

GEORGE IBORNEYI''IErk TREN?, OE SHREVEIORI, LOUISIANA.

SILT TRAP.

Applicationled July 1S,

ful Silt Trap, of which, the followingis a speciiication.y y

It is the object of this invention toprovide novel' means whereby silt may,r be trapped inv a well to prevent' thefsilt from inding its way upwardly', with .the water or oil, to the injury off the piston.l ,t

It is `within the; province ot the disclosure to improve generally yand to enhance the utility of devices of'thattype towhich the invention appertains. p t,

lVth the above and other obj ects in View, which will appear as'the description proceeds, the invention resides in the combinationfand' arrangement of' partsy and inthe details of construction hereinafter described Y and claimed, it being understood that, within the scope'of whatA is claimed, changes in the precise embodiment ,Y of, thel invention shown can be made without 4departing from the spirit of the invention.

In the accompanying drawings Figure 1 shows in longitudinal section, the upperportion of a device constructed in accordance with the invention; Figure 2 shows in longitudinal section, the lower portion of a device constructed in accordance with the invention; Figure 3 shows in longitudinal section, the lower portion of a device constructed in accordance with the invention; Figure 4 is a cross section on the line 4 4 of Figure 1; Figure 5 is a cross section on the line 5-5 of Figure 2; Figure 6 is a cross section on the line 6-6 or Figure 3.

The numeral 1 denotes a well casing,with in which is disposed a working barrel 2 connected by a collar 3 with a swaged nipple 4 united by a coupling 5 with a tube 6, the tube 6 being connected by a coupling 7 to a perforated screen 8, the lower endof which is stopped by a removable kclosure 9.

A piston 10 is mounted for reciprocation in the working barrel 2` and carries a cage 11 whereunto a sucker rod 12 is connected, the usual ball or other valve 14 being` located in the cage 11.

The coupling 5 carries a nipple 15 connected by a coupling 16 to a cage 17 provided with a valve 18 adapted to seat on the upper end of the coupling. It is to be oblsandv trap 19.

received yby the" deflect/or y22.

1921. seriai No. 484,526.

served that the coupling 5 effects a closure of the space between the nipple 15 and the part 4, and, consequently, between these parts, there is fashioned an upper annular A perforated screen 20 is mounted in the lower end ot' the coupling 5 and is provided at its lower end with a closurev 21, .carrying a concaved delector 22, any suitable means 23 being provided for 65 holding the deilector onv the closure 21'.

The coupling-.7 carries an upstanding tube 24V and a depending tube 25,the tube 25 eX- tending downwardly within the screen 8'` The coupling 7 closes the space between the tube ,24 and the member 6, to. form a lower sand'trap 26. 4

In practical operation, when the piston 10v is working, the liquid' is drawn into the screen S through the perforations thereof,

.the liquid passing tiret downwardly, and

then upwardly through the tubes 25 and 24'. As the liquid is discharged, with the silt', from the tube 24, the'liquid and silt are A p The silt. is cast downwardlyand lodgesin'jthe lower trap 26, the liquid proceeding' upwardly' and entering the screen 20. The liquid moves upwardly, past the valvei18 and, should there be any silt left in the liquid, the increment of silt will be deposited in the trap 19, the liquid proceeding upwardly,

through the swaged nipple 4, past the valve 14 and thence to the point of delivery, in the usual way. Y t

The coupling 5 may be alluded'to as an upper partition in the extension 4-5 of the working barrel 2, the coupling Tconstituting a lower partition in the extension. I claim 1. In a device ofthe class described, a working barrel, having a depending eXtension which is provided at its lower .end with a screen, an upper partition in the extension, a valve upstanding from the partition, a 100 second screen depending from the partition and communicating with the valve, the partition and depending extension forming a sand trap below and about the valve, a deflector carried by the second screen, a lower partition in the extension, a depending tubular member carried by the lower paring against the deflector, the lower partition forming' a sand trap aboutthe upstanding tubular member; and a piston mounted for reciprocation in the barrel.

2. ln a device of the class described, a working barrel, having` a depending extension which is provided at its lower end with a screen, an upper partition in Vthe rextension, a valve upstanding from the partition, a second screen depending` from the partition and communicating` with the valve, the partition and depending extension forming a sand trap below and about the valve, a lower partition in the extension, a depending` tubular member carried by the lower partition and extended into the first specified screen, an upstanding tubular member carried by the lower partition and communicating with the depending tubular member, the upstanding tubular member discharging toward the second screen, the lower partition forming a sand trap about the upstanding tubular member; and a piston mounted for reciprocation in the barrel,

3. In a device of the class described, a working barrel, having a depending extension which is provided at its lower end with a screen, an upper partition in the extension, a. valve upstanding from the partition, a second screen depending from the partition and communicating withvthe valve, the partition and depending` extension forming a sand trap below and about the valve, a detleotor carried by the second screen, a

lower partition in the extension, an upstanding 'tubular member carried by the lower partition and communicatingwith the first specified screen, the upstanding tubular member discharging against the deflector, the lower partition forming a sand trap about the upstanding tubular member; and a piston mounted for reciprocation in the barrel.

4. In a device of the class described, a working barrel having a ydepending extension, an upper partition in the extension, a valve upstanding from the partition, a. screen depending from the partition and communicatingwith the valve, the partit-ion and depending extension formingk a sand trap about and below the valve, a deiiector carried by the screen, a lower partition in y the extension, an upstanding tubular meinber carried by the lower partition, the partition having an opening communicating with the upstanding tubular member, the upstanding` tubular member discharging against the deflector, the lower partition forming a sand trap about the upstanding tubular member; and a piston mounted for reciproca-tion in the barrel.

n testimony that I claim the 'foregoing as my own, I have hereto aiiixed my signature in the presence of two witnesses.

GEGRGE BORNETTE TREV'. 1Witnesses:

ERNEST L. MGCAIN, L. E. STEPHENSON. 

